<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>上传</title>
</head>
<body>

<form action="fileupload" method="post" enctype="multipart/form-data">
    上传：<input type="file" name="filename"><br/>
    <button type="submit">提交</button>
</form>

</body>
</html>